Bed-bottom.



H. 0. ERSIN.

BED BOTTOM.

APPLICATION FILED MAY 8. T916.

1,270,608. Patented Jun@ 25, 1918.

3 SHEETS-SHEET 2.

H. 0. ERSIN.

BED BOTTOM.

APPLICATION man mwa. 191e.'

1,270,608. Patented Jun@ 25,1918.y

3 SHEETS*SHEET 3.

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J 37 je f77/(frn ey HAROLD 0. 1ER/SIN, OF ANOKA, MINNESOTA.

BED-BOTTOM.

Specification of Letters Patent.

Patented June 25, 1918.

Application filed May 8, 1916. Serial No. 96,035.

To all whom t may concern:

Be it known that I, HAROLD O. ERsIN, a a citizen of the United States, residing at Anoka, in the county of Anoka and State of Minnesota, have invented a new and useful Improvement in Bed-Bottoms, of which the following is a specification.

This invention relates to bed springs and more particularly to means for adjustably supporting parts thereof. The primary object is to provide an improved fabric, the tension of parts thereof being adjustable from time to time to suit working requirements. In the production of bed springs of that character set forth in my companion vapplication Serial Number 7 67 ,952 filed on the 16th day of May, 1913, a flexible border is employed and a dividing selvage used between sections of the mattress, but the tension of these parts is permanently established so that any loss in tension cannot be equalized. By the use of my invention this loss of tension can from time to time be reestablished, thus extending the life of bed springs employing border or divisional elements of that general character shown in the application for patent above referred to. The invention further relates to novel adjusting devices which are simple and inexpensive in construction.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

This invention is particularly although not exclusively applicable to bed springs in which a mattress fabric is supported under tension in a mattress frame. This mattress fabric is composed of interconnected wire strands, links or other members attached directly or indirectly to end rails of said frame, short helical springs being usually employed for assisting in making the end connections. The side edges of the body of this fabric is usually provided with selvage means which resiliently strengthens the edges of the mattress and furnishes smooth edges which prevent the bed clothing from catching on the ends of parts of the fabric. This selvage means also acts as a guard to keep the mattress in place. The body of the fabric may also be divided centrally and longitudinally into two sections, said sections being independently supported at their ends, but linked together, the line of conuetion beingv resiliently supported independent of the end support of said sections, whereby the effect of two single beds in a double bed is produced, the yielding tendency of each of which being separately adjustable, so that a person lying or resting on one side of the bed and moving thereon will not disturb a person resting on the other side of the bed. The use of selvage strips as set forth in my application for patent above referred to accomplishes the advantages just stated, but to enhance these advantages, I have found that independent means for adjusting the tension of the selvage strips produces a marked advantage by enabling the user from time to time to regulate the selvage means according to conditions.

In the accompanying drawings forming part of this specification, Figure l is a plan of a bed bottom showing one embodiment of my invention; Fig. 2 is a plan of a detail of a bed bottom illustrating another embodiment of my invention; Fig. 3 is a plan of a detail partly in section of one of the adjusters employed in the construction illustrated in Fig. 1; Fig. 4 is a side elevation of the structure illustrated in Fig. 3, the end bar being in section; Fig. 5 is a plan of another adjuster, which is employed in the construction illustrated in Figs. 1 and 2; Fig. (3 is a section taken upon the line X-X of Fig. 5; Fig. 7 is an end view of part of the structure illustrated in Fig. 5; Fig8 is a plan partly broken away and in section of one of the adjustcrs employed in the construction illustrated in Fig. 2. Fig. 9 is a side elevation of the construction `illustrated in Fig. 8 and Fig. 10 is a perspective of one of the parts employed in the structure illustrated in Fig. 8.

In the drawings A indicates a suitable frame of a bed bottom composed of a pair of side bars 2 and 3 and end bars 4 and 5, said side and end bars being rigidly con. nected in any well known manner and said frame being of any usual form within the scope of my invention. The end bars as illustrated are angle irons, although 'they may also be of any suitable form.

B and C indicate two parallel sections of link fabric lying substantially inthe same plane, the ends of said sections being connected by their links and helical springs 7 to the end bar 5.

The ends of sections B and C opposite those which are connected to the end bar 5 are respectively connected .t0 angle iron bars are freely connected to the end bar 4 of the frame by means of bolts 12 fastened through onel side of the end 4 of the frame and t'hrgli a sidel''of" either of the dray'y bars 8 and 9. The ends of thebolts4 passing through the sides 13 of each of the draw bars are secured tcn-uts 14,`so that by turningftheA boltsy by their heads 16, they are screwed into' and out ofthe nuts arfdi the tensin of the sections B and G of the link fabric thusy adjni'ste'd longitudinally for the purpose of talking up any slack and hold-ing the' fabric under desired tension.

Ait each' side of thef frame A' is'r a-t selvage strip or borderv 17 of' any suitable construction,:that-ifllustrated in Figi. 1 consisting of a thin stripl of material, one endI f `which issecured to'the end bar 5 of the frame by apair of helical-tension springs 18. These springsv 18 assist in= supporting the selvage under' tensioni to preventl the edge of each section of the7 fabric from sagging and` becoming strained'. The' inner edges of said strips' are connected' to' the fabric links of the` adjacent fabricV` section; The op-pof'- sitev end of' thef selva-gestrip WhichVV is connected-,Withthe end' bar 5 isv adj u'stably' and resiliently connected With the end:l bar 4 by ani adjuster D and a pair' of helicalI tension springs 19, there being an* adjuster andE a pair Aof said-2 springs provided 'on'y each seluage 17 forming: the. outer border' of the spring` mattress; A

Each of the adjusters D in the construction illustrated in Fig. 1 consists ofl astationary guide member 20 rigidly mounted upon the end bar 4 by" bolts 21 orother sui-tablemeans', a slide 22v the outer e'nd of which isf'attac'hed to the ends of the helical springsf19" and an" adjustingbo'lt 2:3 passing through and secured" tol the endl bar' 4, and movably" attachedI to the slide 22, so that byy turni-ngE saidboltl the' slide can* be moved ini thev guideme'nibe'r" and the tension of the selvage or border 17 regulated" as' desired; The guide is'in7 the form" of'a plate ha-'ving a pair of inner channels 25 in which the slide is guided-fand' is frmed' With an eye .memberi' 26 on its'out'er end? Whichg receives andi lnoyably'i holds" t'he inner endl of the bolt 23ftornorerig-idfly unitethe,parts.` The slide' 22 is in the formi o'f a'plate havingl a dependingflange 27 onl its inner'end" upon Which then'ut`28'pn the "bc`lti-231pre`sses Stop shoulders'29 on the slide' 22r aref arranged to'f strike 'the endi 29 off the guide should the boltfvbecolne detached? andi preif'ent the parte of the? adjuster from becoiningf separated. j f 'Illreadjacentl edges aof the sections B" and C ofthe-fabric are likewise secured to all Geni tral'lyf disposed selvage'c inlthefcnn offa flat strip or other construction, one end of Which is also secured by helical springs 31 to' the'L end bar' 5'. The other end of the selvage 30 is secured by a pair of helical springs 32 to a central adjuster E Which in turnis carried by the bar 4.

This central adjuster E consists cfa giiide member 33 inthe form ofv a plate having upper and lower sides pivotally secured to the end bar, so as tov swingy laterally7 by meansy of afbolt'35 or' other suitableneans. The upper and lower sides of? saidf adjuster E airespaced apart, said loWer side being formed With suitable' openings' 36'* inlwhich parts of the adjusting bolt 37 are admitted. The head end 38 of saidi adjusting blt projectsv through and beyond the end bar 4, While the' inner end extends into the space between the upper andlovver'sides'39" and 40 of' theguiileniemb'er E; Mounted* upcithe lcvver V side ofthe guidemernber E is a slide 41- consisting of a plate having" Yits ends turnedinwardly over( the inner surface" of t'he-l lower side 40 and bent' arcundthe` inner endE of the bolt Placedupon' the-inner endi of the blt'37 is.t a nut"42,f\yhichpresses' against the4 endsofl theilslid'e, so thatv when theE bolt is turned by its'l head 38;" the slide' ismoveduponf the5 lower side'- of the guide member. The body' of the slide`41 is formed With a longitudinal lip` 43l tc Whicli the ends*v of the pair' of helical springs 32 are' attached, thus by' turning'4 thebolt 37, the spring tensionunder'wh-ich the central selvagevis he'ldi'sregulated Thepiyotsupl 100 port 35" allowsl thet adjuster to1 sittingxv later'- ally and' accommodate" lateral moy'enient "of the centralE selivage.` Shoulders 40, on the lower Side member 4()I liiniti or' define the eXtreme outwardi pull' ofi slide ieniber 41 105 The fabric composing the" sections B; and C may be of any suitablecn'struetieniwith# ini the' scope' of myy invention;V anotherl form 0f Construction. bengel-teamed iaz Fig; a, 110

and 9'l and tothe' end" bar' 5' of the franle as 115 illustrated er 1a The eneide Sewage or border inthe construction illustrated in Fig-f. 2 is' (impose of paire-idf wire Strnde 5o and 51 Scu-fedi under termica at their ends by helical' springs 521to*th`e`fendhar 120 5 and-*by helical springs' 53s to aii adjuster D', vvhichf turn l sec'ufr'edf to the? end' bar 4*, said adjnster'being substantially o'fl the same construct-ionE asy theI adjuster' D illl'isl mad in Fig. 1.- l The: centrar sergallay 55g 125 Which composers the equivalent ofi the' sel vage 30`y illustrated irFig.S 1, insteadl ebel ing connected to1 one of the adjusting bars 81er 9'is'secured by atension spring 5'6`at helical spring 57 to an adjuster F, which isslightly different in construction from the adjuster E illustrated in Fig. l, but which coperates with the central selvage in performing substantially a similar result. This central adjuster F which is illustrated in Figs. 8 and 9 consists of a guide member 60 having upper and lower sides spaced apart with their ends pivotally secured to the end bar 4 by a pivot bolt 61. On the lower side 62 of the guide member is mounted a slide 63, which is adapted to move longitudinally thereon, and in which the inner end of the adjusting bolt 64 is secured by a nut 65. The outer end of the adjusting bolt 64 projects through the end bar 4, and is turned by its head to move the slide 63 upon the guide. The slide has its ends wrapped around the bolt 64 on a line at one side of a central line extending through the guide and its pivot point 61. Projecting forwardly from the slide on said central line `is a lip 66 to which is secured the end of the helical spring 57, thus as the slide is moved by the draw bolt 64 placed at one side of said central line, the tension of the central selvage is regulated freely. The shoulders 67 on the lower side 62 of the guide (S0 prevent the slide 63 from becoming detached from the guide member if the bolt 64 is detached. The placing of the bolt 64 at one side of the center line on which the guide is supported allows free movement of the spring 57. The upper side of the central adjuster, both in the construction illustrated in Figs. l and 2 is of sufcient breadth to overlap the primary adjusting bars 8 and 9, so that there is free movement laterally of the central selvage upon the pivot, which secures the adjuster to the end bar 4.

In use the sections B and C of the fabric forming part of the bed bottom is regulated by turning the bolts 16. The side selvage members or borders are adjusted in tension by turning the bolts 23 and the tension of the central selvage is regulated by turning the bolts 38 in the construction illustrated in Fig. l and the bolts 64 in the construction illustrated in Fig. 2.

The term selvage as used throughout the specification as applied to the border members 17 in the construction illustrated in Fig, l, and 50 and 51 in the construction illustrated in Fig. 2, and to the central member 30 in the construction illustrated in Fig. l, and the central member 55 in the construction illustrated in Fig. 2 is employed in its broadest sense, and it is intended that any member that will perform the function or functions accomplished by the members referred to above shall be construed as the full equivalent thereof.

In accordance with the patent statutes, I have described the principles of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative, and that the invention can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

l. In a spring mattress, the combination with the main frame of a pair of independent spring mattress sections resiliently supported at their ends in said main frame, a resilient selvage extending longitudinally between the mattress sections and means for connecting the ends of said selvage in said frame, said means being adjustable to vary the tension of said selvage.

2. In a spring mattress, the combination with the main frame, of a pair of independent spring mattress sections resiliently supported at their ends in said main frame, a selvage resiliently supported longitudinally at each of the outer side edges of said sections, and means for independently regulating the longitudinal tension of said selrage.

3. In a spring mattress, the combination with the main frame, of a mattress fabric resiliently supported at its ends in said frame, a selvage resiliently supported longitudinally at the opposite borders of said fabric and means for independently regulating the longitudinal tension of said selvage.

In testimony whereof, I have signed my name to this specification.

HAROLD O. ERSIN.

Copies of this patent may be obtained foi` five cents each, by addressing the Commissioner of Patents, Washington, D. C." 

